Electrometallurgical furnace.



J. WESTLY.

I ELEGTROMETALLURGIGAL FURNAGE.

APPLIOATION PILED MAY 1, 1912 Patented Jan. 14, 1913.

JENS WESTLY, OF'SULITJELMA, NORWAY.

ELECTROMETALLUEGICAL FURNACE;

Specfication of Letters Patent.

Application filed May 1, 1912.

Patented J an. 14:, 1913. Serial No. 694,4os.

To all 'whom it may concern:

Be it known that I, JENE; VVESTLY, a subject of the King of Norway,residing at Sulitjehna, Norway, have invented certain new and usefullmprovements in Electrometallurgical Furnaces; and I do hereby declarethe following to be a full, clear, and

exact description of the invention, such as will'enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawngs and to letters or figures ofreferenc marKed thereon, which form a part of this specic'aton.

` This inveiition relates to an electrometal lurgical electrode furraceof the resistance type, which is particularly adapted for the treatmentof cuprous ores and products of ores but which may also advantageouslybe` *20 used in treating ores'contanng other metals,' for instancelead,iron, etc.

This furnace is illustrated in the drawing, showing a longitudinalsection of the same. e

1, 2 are the carbon or graphite electrodes, which dpin the slag bath 4.As will be 3 is made gently sloping toward a sump at one end of-thesame, both electrodes being placed above the sloping furnace bottom sothat the electrical current between the electrodes passes solely throughthe slag layer 4. Of course some current may also pass through thefurnace bottom when it has got warm. The nolten metal (5) sinks down inthe sump 6 at't-he end of the furnace outside of the zone of theelectric current.

The charge is preferably fed in so as to form a layer between theelectrodes. The molten metal is let of through the lolc 7 and the slag 8by the overflow 9.

- The furnace may suitably be .made of a great length relatvely to itsbrcadth.

Claim: i

In an electrometallurgical furnace ot' the resistance' type, a furnacebotton sloping gently toward a sumpat one end of the furnace, electrodesimmer'sed into slag covering said 'bottom and sump and placed in suchmanner, that the metal assembled in the sump is kept wholly outside theelectrical circut.

In testimony that I claim the foregoing as my inyenton; I have signed myname in presence of two subscribing witnesses.

J ENS WESTLY. Witn'esses:

N. GUT'roRENsY, NANA SCHIANDER.

copies of this patent may be obtsined for five cents each, by ad-essig'the Commissioner of Patents,

. washington, D. 0."

